| APA | GZD. (2012, February 11). In Acronym Geek. Retrieved 17:24, February 11, 2012, from http://www.acronymgeek.com/GZD |
| MLA | "GZD." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/GZD>. |
| MHRA | 'GZD', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/GZD> [accessed 11 February 2012] |
| Chicago | "GZD", http://www.acronymgeek.com/GZD (accessed February 11, 2012). |
| CBE/CSE | GZD [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/GZD. |
| Bluebook | GZD, http://www.acronymgeek.com/GZD (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GZD, http://www.acronymgeek.com/GZD (optional description here) (as of Feb. 11, 2012, 17:24). |
| AMA | GZD. Acronym Geek. February 11, 2012, 17:24. Available at: http://www.acronymgeek.com/GZD. Accessed February 11, 2012, 17:24. |